[AlexT]

To directly answer your question, the SeaCraft is going to give you a softer ride and be faster, and handle offshore waters better, and have slightly better storage. The Parker is going to give you more deck and foot room and a more stable platform at rest. The JB is kinda right in the middle--a softer ride than the 21se as it has slightly more deadrise and a narrower beam, but less stable at drift. Gobs of storage though in the 1910LT. I believe that the 1910LT and the 21se draft exactly the same, 12", so both are good choices for skinny water.

I know a couple of folks with new SeaCrafts. They are pretty happy with them, but don't think any of them have owned older hulls beforehand.